use of social network analysis in bibliometric … for the sna bibexcel (: it can produce net-files...

Use of Social Network Analysis in

Bibliometric Researches

BOBCATSSS 2012, 23-25 January 2012, Amsterdam, The Netherlands

Umut Al, Zehra Taşkın & Güleda Düzyol{umutal, ztaskin, gduzyol}@hacettepe.edu.tr

Outline� Methodology

� Literature� Social network analysis (SNA)

� Some related terms

� Development of the research on the SNA

� Some related terms

� Tools for the SNA

� Examples

� Conclusion


Methodology� Literature review

� Data source Web of Knowledge (WoK)

� Data set covers 1928-2009

� Authored by the scholars affiliated with � Authored by the scholars affiliated with Turkish institutions

� Data cleaning process

� There is no document type distinction

� 198,687 (All TR addressed publications )

� 14,365 (TR addressed surgery publications)BOBCATSSS 2012, 23-25 January 2012, Amsterdam, The Netherlands

Social Network Analysis (SNA)� “SNA is motivated by a structural intuition

based on ties linking social actors,

� It is grounded in systematic empirical data,

� It draws heavily on graphic imagery,

� It relies on the use of mathematical an/or computational models” (Freeman 2004, p. 3)

� Different application areas

� Sociology, anthropology, social psychology, economics…


Bibliometrics� “The application of mathematical and

statistical methods to books and other media of communication” (Pritchard 1969, p. 348)

� Quantitative and qualitative research evaluation studiesstudies

� Number of publications, citations, citation per publication

� Impact factor

� h-index

� Relative citation impact

� …


# of Publications on SNA (1990-2010)


Some Related Terms� Density: An indicator for the general level of

connectedness of the graph

� Degree centrality: It is equal to the number of connections that an actor has with other actorsactors

� Closeness: A high closeness for an actor means that he or she is related to all others through a small number of paths

� Betweenness: It is based on the number of shortest paths passing through an actor

(Otte & Rousseau 2002, p. 447)


Tools for the SNA� Bibexcel (http://www8.umu.se/inforsk/Bibexcel): It can

produce net-files for co-authorships, co-citations etc, and then convert these for further analysis and visualization with Pajek

Pajek ( ): It calculates most of the � Pajek (http://pajek.imfm.si): It calculates most of the centrality measures

� UCINET (http://www.analytictech.com/ucinet): The matrix analysis routines

� CiteSpace (http://cluster.cis.drexel.edu/~cchen/citespace): Freely available Java application


Examples from Literature


IV. Elektrik Elektronik Bilgisayar Biyomedikal Mühendislikleri Eğitimi Sempozyumu, 22-24 Ekim 2009, Osmangazi Üniversitesi, EskişehirBOBCATSSS 2012, 23-25 January 2012, Amsterdam, The Netherlands

Our Examples


Interface of CiteSpace


Collaboration Network of Turkey Addressed Surgery Publications


Document Co-citation Network


Author Co-citation Network


Journal Co-citation Network (1)


Conclusion� SNA is an emerging field, and it has gained

importance in recent years in the related literature

� SNA method can be used to measure the impact of different actors in scholarly impact of different actors in scholarly communication

� To help better understanding for network structures and bibliometric raw data


Acknowledgments� This study is supported by a research grant

(no: 110K044) of the Turkish Scientific and Technological Research Center (TÜBİTAK).


Use of Social Network Analysis in

Bibliometric Researches


Umut Al, Zehra Taşkın & Güleda Düzyol{umutal, ztaskin, gduzyol}@hacettepe.edu.tr

use of social network analysis in bibliometric … for the sna bibexcel (: it can produce net-files...

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